2. I know its on the Flickr Blog but i bet half of you haven't seen it yet, i love it, 2 photographers spent a weekend in london to take 1000 portraits each, see for yourself
3. Ive been wrong for so long.
"Dogs are not color blind - they see color, but their chromatic acuity is significantly less than humans'. This is for two reasons: (1) dogs have far fewer cone cells in their retina (cone cells are responsible for seeing color); and (2) dogs are dichromatic (they see only two primary colors - blue and yellow) whereas humans are trichromatic, meaning we see three primary colors - red, blue, and green."
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